Draft producer and ventilator



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H. F. NEUMEYER DRAFT PRODUCER AND VENTILATOR Filed March 2, 1925 I I 13 T July 13, 1926.

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July 13,1926. 1,592,614

H. F. NEUMEYER DRAFT PRODUCER AND VENTILATOR Filed March 2, 1925 2 Sheets-Sheet 2 HO'fd G6 NEUMUQ):

Patented July 13, 1926..

' UNITED STATES PATENT OFFICE.

DRAFT ERODUCER AND VENTIITATOB.

Application filed March 2, 1925. Serial No. 12,742.

The object of my invention is to provide a novel draft producer and ventilator which includes a weather-vane to control the position of the ventilator and insure its proper operation. It is also my object to provide a device of this sort so constructed that it can be packed in comparatively compact form for shipment. I attain these and other objects of my invention by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side elevation of my apparatus;

Fig. 2 is a horizontal section on line 22 of Fig. 4;

Fig. 3 is a top plan view of the device;

Fig. 4 is a vertical section through same partly in elevation; and

Fig. 5 is a detail end view of the elbow pipe 2 and ventilator tubes 12.

Like numerals indicate likeparts in each of the several views.

Referring to the accompanying drawings, I provide a pipe 1 preferably of galvanized sheet metal. Two spider web castings 8 and 9. spaced apart as shown in Fig. 4, are suitably mounted in pipe 1 the preferred means of mounting being to press them into the pipe. I further provide an elbow pipe 2 of slightly larger diameter to permit of its lower edge fitting over the top of pipe 1, as shown in Fig. 4. Elbow pipe 2 is provided with spaced openings in which are soldered the small ventilating pipes 12 which extend from a point at the rear of the elbow.

through the elbow to a point a little beyond the lower opening of same and converging toward each other, as illustrated in Fig. 3, to produce a united central flow of air thus producing a suction through pipes 2 and 1.

I provide a suitable spider web casting 6 mounted in the lower portion of elbow pipe 2 through which the rod 3 extends. A set screw 7 istmounted in the hub portion of spider web 6 and engages rod 3 to fasten the spider web and rod firmly together so that the elbow pipe 2 will rotate with rod 3. Rod 3 is rotatably mounted in spider webs 8 and 9.

I prefer to provide a reduced end 10 on rod 3 as shown in Fig. 4. This reduced end 10 is preferably of brass, working on a brass washer so as to permit of easy rotative movement of the rod 3 in spider web 11 which forms a bearing for it.

Rod 3 extends through a suitable opening and casting 5 on elbow pipe 2 as shown in Fig. 4 and is made in two sections connected by a suitable coupling 21 as shown in Fig. 1. The upper section carries a weathervane which is preferablymade in several sections to permit of readily taking the device apart for convenience in packing and transportation. The elements comprising the weather-vane consist of the arrow head 17 arm 4, to which arrow head 17 is attached; hub-piece 15, to which arm 4 is at tached, hub-piece 15 being suitably aflixed to the middle of rod 3 as shown in Fig. 1; an arm 18 to attach to hub-piece 20, and a tail 19 attached to arm 18. The tail 19 is preferably made of two sheets of metal of like size and shape, fastened on either side of the arm- 18 as shown in Fig. 3. Each of the tail members 19 are preferably curved or turned outwardly of the wind. The ar row is mounted on the rod 21 in a position so that the arrow will align with the horizontal portion of elbow pipe 2, the tail of the arrow being disposed over the open end of elbow pipe 2.

The air will pass through the openings 13 and 14 of ventilator tubes 12, thus creating a current of air flowing out of the mouth of elbow pipe 2 which will by suction draw up the air through pipes 2 and 1, thus creating a continuous flow of air and increasing the draft.

lVhat I claim is:

1. In a draft producer or ventilator, the combination of a pipe, an elbow pipe supported in spaced relation with the first mentioned pipe, a rod to which the elbow pipe is rigidly attached, means within the first mentioned pipe supporting the rod and per mitting of its rotation, a weather vane affixed to the rod, and converging ventilating pipes mounted in the elbow pipe and having their inner ends in proximity and their outer ends spaced apart.

2. In an apparatus of the class described,

a main pipe, an elbow pipe rotatably mounted on the main pipe, a rod, spaced spiders in the main pipe in which the rod is rota- 5 tably mounted, a spider in the lower portion of the elbow pipe to which the rod is aflixed to cause the pipe to move with the rod, a plurality of ventilating pipes extend ing horizontally through the elbow of the elbow pipe, the outer ends of said Ventilating pipes being spaced apart and the inner ends of said pipes converging until they contact.

HORACE FALK NEUMEYERQ 

